Menu
Could you please explain to me the WINAPI word in the WinMain() function?
In the simplest way..
#include <windows.h> int -->WINAPI<-- WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) { MessageBox(NULL, "Goodbye, cruel world!", "Note", MB_OK); return 0; } Is it just some Windows funky mode?
What does it do? Or rather what is this C++ feature I haven't encountered yet?
428
WINAPI is a macro that evaluates to __stdcall , a Microsoft-specific keyword that specifies a calling convention where the callee cleans the stack. The function's caller and callee need to agree on a calling convention to avoid corrupting the stack.
hInstance is something called a "handle to an instance" or "handle to a module." The operating system uses this value to identify the executable (EXE) when it is loaded in memory. The instance handle is needed for certain Windows functions—for example, to load icons or bitmaps.
WinMain() is the C entry point function of any windows application. Like normal DOS/console based application which has main() function as C entry point, in windows we have WinMain() instead.
WinMain() is Windows specific entry point to a Windows-based graphical application (you have windows stuff). main() is a standard C++ entry point (in Windows, it's a console based application)... That said, you can use GUI stuff in console applications and allocate console in GUI applications.
WINAPI is a macro that evaluates to __stdcall, a Microsoft-specific keyword that specifies a calling convention where the callee cleans the stack. The function's caller and callee need to agree on a calling convention to avoid corrupting the stack.
59
WINAPI is a macro that expands to __stdcall which means that the callee cleans the stack.
33
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
